Zoom 25.4 120mm 80-130 Degree Adjustable Angle Black 1-1/8" Threadless Clamp Diameter: 25.4mmClamp Diameter: 25.4mmSteer Tube Clamp Diameter: 1-1/8"Steerer Tube: 1-1/8" ThreadlessStem Color: BlackStem Length: 120mmStem Rise: 80-130 degWeight: 368g